In the meantime I have been told that the animation can not be refreshed in Firefox. Another nice comment was: where are the reeds? In the final page, there will be additional pictures, showing what part of the action you are looking too. This editon is only a try out.

In order to clarify a problem in a Mason & Hamlin reed organ the picture above has been enhanced.

The fulcrum as it should be (left) and a broken one (right)
In the mean time a supplier of fulcrums has been located.